<!-- 边框线 -->

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>盒子边框线</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            background-color: rgb(62, 164, 172);

            /* 实线 */
            /* border: 1px solid #000;; */

            /* 虚线 */
            /* border: 6px dashed #000; */

            /* 点线 */
            /* border: 5px dotted #000; */
        }
    </style>
</head>
<body>
    <div>盒子边框线</div>
</body>
</html>